Online documentation - WebsydianExpress v3.0

Create a Dynamic Child Page

Overview

A child page is included on a parent page using the FNC includes/comprises FNC triple on the parent PageGenerator function. This relation is specified at development, and thus requires a recompilation whenever you want to add the child page to another parent page.

To avoid this you can use the dynamic child page (function WSYAPI/Abstract.DynamicChildPageGenerator). As the child page the dynamic child page generator only generates part of a HTML page which then is included in the parent page.

Define dynamic child page function

You define the page and specify which functions you want to generate and build using the following triples.

Source Object	Verb	Target Object
MyDynamicChildPage	is a FNC	WSYAPI/Abstract.DynamicChildPageGenerator
MyDynamicChildPage	implement SYS	Yes
MyDynamicChildPage. _DocumentTemplateGenerator	implement SYS	Yes

Include the child page in the parent page

You include a dynamic child page on a parent page by inserting the following in the HTML template for the parent PageGenerator:

/(CHILDFNC-MyChild)

The string value after the dash is the implementation name of the dynamic child PageGenerator (in the above example the implementation name is MyChild).

Some things to note:

The Express runtime will use the same presentation for the child as was used for the parent.
The authorization of the child follows the authorization for the parent. That is, if a user is authorized for the parent page, then he will also be authorized for the child page.

Transferring parameters from parent to child

It is possible to transfer parameters from the parent PageGenerator function to the child PageGenerator function. This is done using the following syntax:

/(CHILDFNC-MyChild?ProdCode)

The value for the field with implementation name ProdCode will be transferred from WsyDetails or WsyGrid in the parent PageGenerator function to the same field in the InputFromParent variable in the child PageGenerator function.

You have the following options for transferring parameters to the child PageGenerator function

Format	Inside grid	Child PageGenerator		Parent PageGenerator
Format	Inside grid	Variable	Field	Variable	Value from
/(CHILDFNC-MyChild?ProdCode)	No	InputFromParent	ProdCode	WsyDetails	Field: ProdCode
/(CHILDFNC-MyChild?ProdCode)	Yes	InputFromParent	ProdCode	WsyGrid	Field: ProdCode
/(CHILDFNC-MyChild?ProdCode=/[MyProdCode])	No	InputFromParent	ProdCode	WsyDetails	Field: MyProdCode
/(CHILDFNC-MyChild?ProdCode=/[MyProdCode])	Yes	InputFromParent	ProdCode	WsyGrid	Field: MyProdCode
/(CHILDFNC-MyChild?ProdCode=A1234)	-	InputFromParent	ProdCode	-	Value: A1234

Finally, it is possible to add multiple parameters by separating each name-value pair with an ampersand:

/(CHILDFNC-MyChild?ProdCode1&ProdCode2=/[MyProdCode]&ProdCode3=A1234)